Concrete-form apparatus



A ril 2, 1929.-

w. 5, VENARD 1,707,336

CONCRETE FORM APPARATUS Filed April 1928 2 Sheets-Sheet 1 Ar N INVENTOR.

W'fi-Venard' 7 ATTOEY. "w

April 2, 1929. w. G. VENARD 1,707,335

CONCRETE FORM APPARATUS Filed April 1928 2 Sheets-Sheet 2 o .t v

INVENTOR.

Patented Apr. 2, 192th ll i l l "l" h l3 S ll VFXLL'IAIVI Vlllil'iiltl), (Ill? Lt'llrl'G J1EE, CALIFORNIA.

COIlGlTtE'QllS-JTORM APRARAEUS.

Application filed April 2,

This invention relatas to concrete form apparatus.

in erection of concrete walls and columns it the practice to use wooden orinetal mold panels and to stay these from the outside by means of uprghts and cross-bars generally oi wood. this necessitates a considerable quantity of stock and the use oi much time and skillful labor. A very material amount of waste is entailed by denmlition oil the wooded in so work.

An object of my. present invention is to overcome the above disadvantages and provide a metal torin upright and cross is capable of being readily erected and oi being collapsed or extended telescopically to dii'i'erent lengths as may he necessary.

Numerous additional objects and features of construction combination. and details of means will he made manifest in the following description oil the herewith illustrative apparatus; it being uniilcrstood that modifications, variations and adaptations may he resorted to within the spirit, scope and principle'oif the invention as it is more directly claimed hereinafter.

Figure l is a top end view of a form stay'or iqpright.

Figure 2 is an inner "face elevation of the up ght, (medially broken).

h igure 3 is a side elevation thereof.

l igure l is a perspective oil'i telescoped parts oil the upright Figure 5 is a detail perspective of a filler strip of the stay device.

liigurc (l is a plan and horizontal section cl a part oi" an erected :lorm apparatus.

Figure 7 is a vertical section otthe torni.

Figure 8 is a sectional detail showing tiewire disposed. between the spaced filler strips.

Figure 9 is a horizontal section oi a concrete coluinn; showing its panels braced by short telescopic stays.

Figure 10 is a sectional elevation of astirrup for linking ends of the stays of a col umn form; as in Fig. 9. Figure 11 shows a 3111. 1 The present concrete form support includes inner unit composed of a pair of spaced channels 23 having their flanges -1l-5 and (l7 turned outward as best shown in Fig. 4e. lhe channels are rigidly and permanently crossconnected by spacers 8 at suitable pitch to provide a space for the reception of form tie wires 10,]ligs. 6 and 7.

These inner units may be of any length advantages 1928. Elerial Ito. 266,803.

and cross dimensions and are slidahle in outer units which, each, include l..--.1neinhers 1l-12 whose flanges l3-l-l are rehated at the inner corners to receive the flanges 5---l' oil the inner unit. The :tlanges 5 7, id all have inner laces in a common plant to li llizsh against interposed mold panels l", as shown in Fig; (3; to which these flanges may he nailed or cleated in any desired manner {the Arircs 10 serving to hold the erected s and panels aq rainst spreading action of the load in the mold.

The outer l -1ne1'nhers ll-l2 lie between the respective flanges l-5 and (3? and are held in such position by outer tl-clips 15 fitting slidahly over the flanges a and 6. lhe U- clips are pitched at suitable distance and along them are reach or tiller pieces 1617 oti' angle iron having one flange notched at 1h, Fl 5, to straddle down over interposed clips 15. These fillers are spaced and register with the inner cha nncls 2-3 to term a rest for tie-rings 1.9 which are in loops 10, of the tie-wires 10 whose inner ends are clinched over the mold panels P.

l l hen the stay units are set vertically as standards, to support panels, they are telescoped in or out to the desired length and the tie-wire 10 is rove across from standard. In some places the tie-rings 19 will bear against the flanges 4 6 oi the inner unit I and in other cases will hear on the fillers 16-l7 forming parts oi. the outer unit t), Fig. l. The spaced channels 2-3 and the spaced tillers liti? provide a recess just wide enough to clear the diameter oi? the wire l0; thus holding the llttlFl oi? the hiopcd part l() in dell initeflllllltll'llfih'tKl relation.

in Fig. 9 shown a iiorn'l tor a column in which the panels l? are girdled by short sections or units 1 and O which are tclescoped and pinned at to a length somewhat less than the width of the panel. The ends oi? the units are diagonally connected across the corners hy stirrups 26 which have loop ends 27 hearing against end straps 28 on the inner unit I. The other ends of the stirrups have 29 to drive down back of end clips 15.

What is claimed is:

1. A. concrete torin stay including an inner unit COillPllSlllg spaced channel members rigidly secured with backs in spaced relation and havin out turned flanges, means connecting the spaced channel hacks, and an outer unit having outer members sliding on faces of the inner unit and having flanges in a comthe members 01 the outer unit.

2. A concrete form stay including an inner unit comprising spaced channel members rigidly secured With backs in spaced relation and having out turned flanges, means connecting the spaced channel backs, and an outer unithaving outer members sliding on faces of the inner unit and having flanges in a common plane with flanges of the inner unit to support mold panels, and means connecting the members of the outer unit; said means including U-clips straddling the inner unit.

A concrete form stay including. an inner unit comprising spaced channel members rigidly secured'with backs, in spaced relation and having out turned flanges, means connecting the spaced channel backs, and an outer unit. having outer members sliding on faces of the inner unit and having flanges in a coinmon plane with flanges of the inner unit to support mold panels, and means connecting the members of the outer unit, and strips on the outer unit forming a hearing means for tie-wire apparatus.

l. A concrete form stay including a hollow inner unit and an outer unit telescoping there- On; said units presenting registered chambers, and form tie-wires having loops extending into said chambers and interlocking on opposite, coordinate stays to hold them in position.

5. A concrete term stay including an inner unit and an outer unit telescoping therein; said units presenti coaxial chambers and iiush form support g aces, means holding the units in guide-a, s alahie relation, and means interlocking the units in telescopic adjustment.

lV. G. VENARD. 

